<?php

/**
 * App_Utf8::ucwords
 *
 * @author Kohana Team
 * @copyright (c) 2007 Kohana Team
 * @copyright (c) 2005 Harry Fuecks
 * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
 */
function _ucwords($str)
{
    if (SERVER_UTF8)
    return mb_convert_case($str, MB_CASE_TITLE);
    if (App_Utf8::is_ascii($str))
    return ucwords($str);
    // [\x0c\x09\x0b\x0a\x0d\x20] matches form feeds, horizontal tabs, vertical tabs, linefeeds and carriage returns.
    // This corresponds to the definition of a 'word' defined at http://php.net/ucwords
    return preg_replace('/(?<=^|[\x0c\x09\x0b\x0a\x0d\x20])[^\x0c\x09\x0b\x0a\x0d\x20]/ue', 'utf8::strtoupper(\'$0\')', $str);
}